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Brake Pad Wear Indicator Sensor - Bosch - 1987473612

Brake Pad Wear Indicator Sensor - Bosch - 1987473612

Ensure your vehicle braking system remains in optimal condition with this Bosch Brake Pad Wear Ind...

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eBayBOSCH-OE 1 987 473 612-OE Warning Contact, brake pad wear for BMW
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AutodocBOSCH Brake Pad Wear Sensor BMW 1 987 473 612 34216861809,34216890792 Brake Wear Indicator,Brake Wear Sensor,Warning Contact, brake pad wear
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My Motor WorldBosch 1987473612 Brake Pad Wear Sensor (Ap1130)
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£24.99
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Product Information

Full details

The Bosch Brake Pad Wear Indicator Sensor (1987473612) is an essential maintenance component designed for BMW 5 Touring (G31) owners who prioritize vehicle safety and precise brake system monitoring. This sensor reliably alerts the driver when brake pads reach their minimum thickness, helping to prevent rotor damage and ensure optimal stopping performance. While it offers an exact OEM-spec fit, installation requires accessing the rear wheel assembly, making it best suited for those comfortable with standard automotive brake service or professional mechanics.

All features

Model Part Number1987473612
BrandBosch

Extended Product Information

FAQs

Do I need to replace this sensor every time I change my brake pads?

Yes. Once the sensor has made contact with the rotor to trigger a warning, it is physically worn and cannot be reused.

Is this sensor compatible with both front and rear axles?

No, this specific model (1987473612) is engineered specifically for the rear axle of the BMW G31.

What OEM part numbers does this replace?

It is a direct replacement for OEM references 34216861809 and 34216890792.

Can I install this without special tools?

You will need standard automotive tools to remove the wheel and gain access to the brake assembly, but no proprietary Bosch diagnostic tools are required for the installation itself.

Why is the sensor length 868 mm?

The length is pre-determined to match the distance from the rear brake caliper to the connection point on the vehicle's chassis, ensuring enough slack for suspension travel.

Troubleshooting

Brake warning light stays on after installation

Verify the electrical connector is fully seated and clear of debris. You may need to perform a system reset through the vehicle's iDrive service menu.

Sensor cable is too short or too long

Check that the routing follows the factory-specified path. Ensure the cable is not snagged on the brake line or suspension arm.

Pros and Cons

Pros

  • Exact replacement for OEM references 34216861809 and 34216890792
  • Essential for preventing expensive brake rotor damage
  • Bosch manufacturing standards for long-term reliability
  • Precise fitment for BMW 5 Touring (G31) platform

Cons

  • Requires removal of wheels and brake components for installation
  • Designed exclusively for the rear axle, not interchangeable with front sensors
  • Sensor typically requires replacement whenever brake pads are changed

Setup, Compatibility & Care

This sensor is compatible with the BMW 5 Touring (G31) series. Installation involves routing the 868 mm cable through the designated chassis clips and connecting it to the vehicle's brake pad sensor terminal near the wheel hub.

Installation Steps:

  1. Safely lift the vehicle and remove the rear wheel.
  2. Locate the old sensor wire trailing from the brake pad assembly.
  3. Disconnect the old sensor from the electronic junction box.
  4. Route the new Bosch sensor along the existing path, securing it with the provided clips to ensure it does not touch the wheel or suspension components.
  5. Snap the sensor securely into the new brake pad indicator slot.

Care Tip: Ensure the sensor cable is properly seated in all mounting clips; if the cable hangs too low, it can snag on suspension components and cause a false "wear" signal.

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